package com.sap.mall.cart.vo;

import lombok.Data;

import java.math.BigDecimal;
import java.util.List;

/**
 * 需要计算得属性必须重写get方法
 */
public class Cart {

    private List<CartItem> items;

    private Integer countItem;      // 商品数量

    private Integer countType; // 商品类型

    private BigDecimal totalAmount;  // 商品总价

    private BigDecimal reduce = new BigDecimal("0");

    public List<CartItem> getItems() {
        return items;
    }

    public void setItems(List<CartItem> items) {
        this.items = items;
    }

    public Integer getCountItem() {
        int count = 0;
        if (items != null && items.size() > 0) {
            for (CartItem item : items) {
                count += item.getCount();
            }
        }
        return count;
    }


    public Integer getCountType() {
        int count = 0;
        if (items != null && items.size() > 0) {
            for (CartItem item : items) {
                count += 1;
            }
        }
        return count;
    }

    public BigDecimal getTotalAmount() {
        // 计算购物项总价
        BigDecimal amount = new BigDecimal("0");
        if(items != null && items.size()>0){
            for (CartItem item : items) {
              if (item.getCheck()){
                  BigDecimal totalPrice = item.getTotalPrice();
                  amount = amount.add(totalPrice);
              }
            }
            // 计算优惠总价
            amount = amount.subtract(getReduce());

        }
        return amount;
    }

    public BigDecimal getReduce() {
        return reduce;
    }

    public void setReduce(BigDecimal reduce) {
        this.reduce = reduce;
    }
}
